System of gearing.



WITNESSES:

M. HARVEY. SYSTEM OF GEARING. APPLIUATION FILED MAY 26, 1904.

Patented Nov. 10, 1908.

3 PS-SHEET 1.

WITNESSES:

Patented Nov. 10, 1908.

INVENTOR ATTORNEY I I I M. HARVEY. SYSTEM OF GEARING.

APPLIOATION FILED MAY 26 1904. 903,817.

Patented Nov. 10, 1908.

3 8HEETSSHBBT 3.

0% Qt Ag, fl/f ATTORNEY UNITED STATES PATENT OFFICE. MINOR HARVEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO MORSE, WILIJIAMS AND COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

SYSTEM OF GEARING.

Specification of Letters Patent.

Patented Nov. 10, 1908.

To all whom it may concern:

Be it known that I, MINOR HARVEY a citizen of the United States, and a resident of the city and county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Systems of Gearing, of which the following is a specification.

My invention relates to gearing, and although it is particularly adapted to sugar mills, it may have a eneral application.

The object of the invention is to provide simple and eflicient gearing of the character referred to.

' Other objects of the invention will appear hereinafter, the novel combinations of elements being set forth in the appended claims.

In the accompanying drawings, Figure l is a view partly in vertical section and partly in side elevation of a sugar mill embodying my invention; Fig. 2 is an end elevation thereof; Fig. 3 is a partial top plan view; and Fig. 4 is a top plan view of a modification of the sugar mill.

Similar letters of referencedesignate corresponding parts in the various views.

designates a foundation which may be of any suitable material, such as brick.

B designates an engine or motor of any suitable type, and B a fly or balance wheel rotated or driven by the engine or motor. The wheel B is mounted 'on a driving member'or driving shaft B which, through a special coupling 0, is connected to a line of driven shafting D, from which motion and power are transmitted to the rolls of the mill. The line of shafting. D is preferably in sections, one section being provided for each set of rolls, and the several sections all united by couplings D of any suitable form. These couplings permit the several parts of the mill being easily set up in position or removed for repairs. Each section of shaft is suitably journaled in bearings d, d supported on the foundation, as more clearly indicated in Fig. 2. Each section of shaft is provided with a worm d which is preferably of the form of worm known as the Hindley spiral. The worms (1 are all alike, which is a convenience for manufacturing purposes, and they are capable of meshing with worm gears d of different sizes. The sizes of the Worm gears 03 depend upon the speed desired, such a worm gear being provided eating for each set of rolls as shown. Each gear wheel 61 is connected to rotate with a shaft which carries a roll, and at its other end another gear wheel which meshes with similar gear wheels to which are connected other rolls of the corresponding set.

Intermediate the couplings D of the shaft sections are thrust blocks F and F, the former being larger than the latter. These thrust blocks are employed in the usual operation of the mill. The thrust blocks F are provided with reverse steps with respect to those of the thrust blocks F, so as to permit reverse operation of the mill. These thrust blocks may be included in the lubriand cooling systems hereinafter described.

The coupling C may be of any desired construction. The two parts of the coupling are held together by means of copper bolts. This method of holding the two parts of the coupling together is preferable, for the reason that the copper bolts will easily shear should any of the sets of rolls be prevented from rotating from any cause.

D D D and D designate sets of rolls, the first of which is termed the crushing rolls, while the remaining sets are termed grinding rolls. These rolls may be of any desired construction and arrangement. Intermediate the sets of rolls are chutes D, or

they may be conveyors, for carrying the canes from one set of rolls to another.

E designates what may be termed a bedplate. It is set in a suitable support in the foundation A, and may be in a single piece or in sections. It comprises a plurality of chambers e, e set one within another and in pairs, one pair being provided for each worm. This is clearly shown in Figs. 1 and 2. The chamberse which contain lubricating oil, are suitably connected to ether by means of a pipe or conduit e and a pump 6 is provided for forcing the oil to circulate from one chamber to another. The chambers e which contain water for cooling pur-' poses are similarly connected by means of a pipe or conduit 6, and a pump e is provided for causing the water or other cooling liquid to circulate from one chamber to another. The chambers e, conduit 6 and pump 6 constitute a lubricating system, and the chambers e, conduit e and pump a constitute a 1:5 blocks F. and F may be em loyed between her e and one chamber e such lubricating system and cooling system, respectively In Fig. 4 the en e or motor occu ies a central position wit respect to the rol s, the

a I I flyfwh'eel B being connected to the driving shafts D. Worms G, G are provided at the ends of the shafts D and mesh with worm wheels H, H carried by the driven shafts H3; H on which worms may be laced to driveworm gears carried by one o the rolls ini each set. Lubricating and cooling systerns may be employed in this arrangement in-the same manner as described in connection with the sugar mill shown in Figs. 1 Land3; Separate couplings D, D and thrust each worm-d and thesuccee ing one.

i It will be evident to those skilled in the art that by reason of the worm gearing for driving purposes and the connections betweenthe same, a smoother o eration of the rolls with less vibration is o tain'ed, and a 7 parts out o I claim and desire to have protected by Letters' Patent of the United States is thrust bearin 1. The combination with a driving member, of-a'sectional line of shafting connected t l1ereto,a plurality of couplings connecting together said sections of shafting, a pair. of thrust blocks between each pair of couplings, a plurality of worms, one for each section of shafting, and a plurality of worm gears meshing respectively with said worms and connected to the parts to be actuated.

2. The combination with a driving meme ber, of a sectional line of shafting connected thereto, a plurality of couplings connecting together said sections of shafting, a double between each pair of couplings, a plura ity of worms, one for each section of shafting, and a plurality of worm gears meshin respectively with said worms and connecte .to t e parts to be actuated.

3. The combination with a driven line of shaftin of a suitable foundation therefor, a plura ity of worms carried by said shafting, a plurality of worm gears, one meshing with each of said worms and connected to the parts to be operated, a circulating lubrieating system associated directly with said worms, and a cooling system associated with said lubricatin system. I

4. The combination with a driven line of shafting, of'a plurality of worms connected thereto, a plurality of worm gears respectively in mesh with said worms, a circulating lubricating system for said worms and ears,

and a circulating cooling system for said lubricating system.

5. The combination with a driven shaft, of a worm carried thereby, a worm wheel in mesh with said worm and connected to the parts to be operated, means for circulating the lubricating material to efiect a lubrication of said worm and worm wheel, and means for circulating a cooling liquid in proximity to the lubricating-material-circu-- lating-means to cool the lubricant.

6. The combination with a driven shaft,

of awormcarried thereby, a'worm wheel in mesh with said worm and connected to the parts to be moved, means for circulating the lubricant to effect an immersion of the lower portion of said worm, and means for circulating a cooling liquid in proximity to the 'lubricating-circulatin -means to lower the temperature of the 111' ricant.

7 The combination with a horizontal shaft,'of means for driving-the same, worms carried by the shaft, worm wheels in mesh with the worms and connected to the parts to be operated, means for maintaining the lubricant in position to partially immerse the worms; and means for circulating the lubricant.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses. MINOR HARVEY,-

Witnesses: I n e W. H. STOKES, v

HENRY E. KIRBY." 

